root cap


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root cap

n. Botany
A thimble-shaped mass of cells that covers and protects the root tip.

root cap

a structure found at the apex of all ROOTS (except those of many water plants), produced by the APICAL MERISTEM. The cap consists of a thimble-shaped collection of PARENCHYMA cells which have a protective function. As the root pushes its way through the soil the outer (older) cells of the root cap are sloughed off and replaced by new cells from the MERISTEM.
References in periodicals archive ?
The Trilepis-type can be derived from the Carex-type by a flattening of the scutellum and a shifting of the root cap to a subbasal position (Fig.
However, root caps were heavily colonised by bacteria, and contact points with remnant roots had more filamentous bacteria than other regions.
An ultrastructural study of the inhibition of mucilage secretion in the wheat root cap by aluminium, Pp 779-787 in Plant-soil interactions at low pH (R.
* Root cap. The root cap is located at the tip of the root and consists of several layers of cells that protect the root as it grows through the soil.
Roots harvested in this manner had little, if any, soil contamination and root caps were observed in >95% of the roots.
Ryan PR, Ditomoso JM, Kochian LV (1993) Aluminum toxicity in roots: an investigation of spatial sensitivity and the role of the root cap. Journal of Experimental Botany 44, 437-446.
Strain Sp7 preferentially colonized the root hair proliferation zone with a few cells found on the root elongation and root cap zone.
has ruled out a role of the root cap and emphasizes that the root
In seed harvested at 500 g [H.sub.2]O [kg.sup.-1] fw (about 530 g [H.sub.2]O [kg.sup.-1] fw embryo MC), LB were dispersed throughout the cytoplasm in root cap, outer QC cells, and inner QC cells (Fig.
surface of the root cap and on the epidermis and root-cap fragments
Aluminun toxicity in roots: An investigation of spatial sensitivity and the role of the root cap. J.